> It doesn't seem like blowers could be 10% of that no matter how you slice it. A couple of quotes from, comparing a two stroke leaf blower to a 2011 F-150 SVT

> It doesn't seem like blowers could be 10% of that no matter how you slice it. A couple of quotes from, comparing a two stroke leaf blower to a 2011 F-150 SVT Raptor: https://www.edmunds.com/about/press/leaf-blowers-emissions-dirtier-than-high-performance-pick-up-trucks-says-edmunds-insidelinecom.html https://www.edmunds.com/about/press/leaf-blowers-emissions-d... "The hydrocarbon emissions from a half-hour of yard work with the two-stroke leaf blower are about the same as a 3,900-mile drive from Texas to Alaska in a Raptor," said Jason Kavanagh, Engineering Editor at Edmunds.com. "As ridiculous as it may sound, it is more 'green' to ditch your yard equipment and find a way to blow leaves using a Raptor." "The tests found that a Ryobi 4-stroke leaf blower kicked out almost seven times more oxides of nitrogen (NOx) and 13.5 times more carbon monoxide (CO) than the Raptor, which InsideLine.com once dubbed "the ultimate Michigan mudslinger." An Echo 2-stroke leaf blower performed even worse, generating 23 times CO and nearly 300 times more non-methane hydrocarbons (NMHC) than the Raptor. " 10% does seem mind bogglingly high, but then when you consider just how big the efficiency gap is, and start thinking about how many people have leaf blowers, weed whackers and the like... maybe it's possible?